Jan 17, 2006

ChipMOS Reports December 2005 Revenue

HSINCHU, Taiwan, January 17, 2006 - ChipMOS TECHNOLOGIES (Bermuda) LTD. ("ChipMOS" or "the Company") (Nasdaq: IMOS) today reported its unaudited consolidated revenue for the month of December 2005.

Revenue for the month of December 2005 was NT$1,490.7 million or US$45.4 million, an increase of 5% from NT$1,424.2 million or US$43.4 million for the month of November 2005 and an increase of 18% from NT$1,260.7 million or US$38.4 million for the same period in 2004. (All translations from NT dollars to U.S. dollars were made at the exchange rate of NT$32.85 against US$1.00 as of December 30, 2005.)

ChipMOS' December 2005 consolidated revenue included revenues of ChipMOS TECHNOLOGIES INC. ("ChipMOS Taiwan"), ChipMOS Japan Inc., ChipMOS U.S.A., Inc., ChipMOS TECHNOLOGIES (H.K.) Limited, Modern Mind Technology Limited and its wholly-owned subsidiary ChipMOS TECHNOLOGIES (Shanghai) LTD., and ThaiLin Semiconductor Corp. ("ThaiLin"). On November 21, 2005, CHANTEK ELECTRONIC CO., LTD. was merged into ChipMOS Taiwan, with ChipMOS Taiwan as the surviving entity. On December 1, 2005, ChipMOS Logic TECHNOLOGIES INC. was merged into ThaiLin, with ThaiLin as the surviving entity.

About ChipMOS TECHNOLOGIES (Bermuda) LTD.
ChipMOS ( http://www.chipmos.com.tw ) is a leading independent provider of semiconductor testing and assembly services to customers in Taiwan, Japan, and the U.S. With advanced facilities in Hsinchu and Southern Taiwan Science Parks in Taiwan and Shanghai, ChipMOS and its subsidiaries provide testing and assembly services to a broad range of customers, including leading fabless semiconductor companies, integrated device manufacturers and independent semiconductor foundries.

Forward-Looking Statements
Certain statements contained in this announcement may be viewed as "forward-looking statements" within the meaning of Section 27A of the U.S. Securities Act of 1933, as amended, and Section 21E of the U.S. Securities Exchange Act of 1934, as amended. Such forward-looking statements involve known and unknown risks, uncertainties and other factors, which may cause the actual performance, financial condition or results of operations of the Company to be materially different from any future performance, financial condition or results of operations implied by such forward-looking statements. Further information regarding these risks, uncertainties and other factors is included in the Company's most recent Annual Report on Form 20-F filed with the U.S. Securities and Exchange Commission (the "SEC") and in the Company's other filings with the SEC.